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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
well it took me quite long to do it and while checking others solution,it looks like how easy it was but wasn't for me and now it is.